oj.uz

Submission #167655

# Submission time Handle Problem Language Result Execution time Memory
167655 2019-12-09T09:18:07 Z atoiz Birthday gift (IZhO18_treearray) C++14
100 / 100
 1439 ms 68600 KB 
#include <bits/stdc++.h>

using namespace std;

#define FOR(i, a, b) for (int i = a; i <= b; ++i)
#define FORA(i, a) for (auto &i : a)
#define FORB(i, a, b) for (int i = a; i >= b; --i)
#define SZ(a) ((int) a.size())
#define ALL(a) a.begin(), a.end()

const int MAXN = 200007, LOG = 19;
set<pair<int, int>> pairs[MAXN];
vector<int> G[MAXN];
int anc[LOG][MAXN], dep[MAXN], A[MAXN];
int N, M, Q;

int get_lca(int u, int v)
{
	if (dep[u] < dep[v]) swap(u, v);
    FORB(j, LOG - 1, 0) if (dep[u] - (1 << j) >= dep[v]) u = anc[j][u];
    if (u == v) return u;
    FORB(j, LOG - 1, 0) if (anc[j][u] != anc[j][v]) u = anc[j][u], v = anc[j][v];
    return anc[0][u];
}

void dfs(int u, int p)
{
    for (int v : G[u]) if (v != p) {
		anc[0][v] = u;
		FOR(i, 1, LOG - 1) anc[i][v] = anc[i - 1][anc[i - 1][v]];
        dep[v] = dep[u] + 1;
        dfs(v, u);
    }
}

void rem(int u, int i, int j)
{
	pairs[u].erase(pairs[u].find(pair<int, int>(i, j)));
}

int main()
{
	ios_base::sync_with_stdio(0); cin.tie(0); cout.tie(0);
    cin >> N >> M >> Q;
    FOR(_, 0, N - 2) {
		int u, v;
		cin >> u >> v;
		G[u].push_back(v);
		G[v].push_back(u);
    }
    dfs(1, 0);

    FOR(i, 1, M) cin >> A[i];
    FOR(i, 1, M) pairs[A[i]].emplace(i, i);
    FOR(i, 1, M - 1) pairs[get_lca(A[i], A[i + 1])].emplace(i, i + 1);

    FOR(_, 0, Q - 1) {
        int type;
        cin >> type;
        if (type == 1) {
            int i, u;
            cin >> i >> u;

			rem(A[i], i, i);
			pairs[u].emplace(i, i);

			if (i > 1) {
				rem(get_lca(A[i - 1], A[i]), i - 1, i);
                pairs[get_lca(A[i - 1], u)].emplace(i - 1, i);
			}

			if (i < M) {
                rem(get_lca(A[i], A[i + 1]), i, i + 1);
                pairs[get_lca(u, A[i + 1])].emplace(i, i + 1);
			}

			A[i] = u;
        } else {
        	int l, r, u;
			cin >> l >> r >> u;
            auto it = pairs[u].lower_bound(pair<int, int>(l, l));
            if (it == pairs[u].end() || it->second > r) {
                cout << "-1 -1\n";
            } else {
				cout << it->first << ' ' << it->second << '\n';
			}
        }
    }
}

Subtask #1
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 14 ms 14456 KB n=5
2 Correct 14 ms 14556 KB n=100
3 Correct 15 ms 14584 KB n=100
4 Correct 14 ms 14588 KB n=100
5 Correct 15 ms 14712 KB n=100
6 Correct 14 ms 14584 KB n=100
7 Correct 15 ms 14596 KB n=100
8 Correct 14 ms 14584 KB n=100
9 Correct 15 ms 14556 KB n=100
10 Correct 15 ms 14588 KB n=100
11 Correct 15 ms 14584 KB n=100
12 Correct 15 ms 14584 KB n=100
13 Correct 15 ms 14584 KB n=100
14 Correct 15 ms 14588 KB n=100
15 Correct 14 ms 14584 KB n=100
16 Correct 15 ms 14588 KB n=100
17 Correct 15 ms 14584 KB n=100
18 Correct 14 ms 14584 KB n=100
19 Correct 14 ms 14588 KB n=100
20 Correct 15 ms 14584 KB n=100
21 Correct 15 ms 14520 KB n=100
22 Correct 15 ms 14584 KB n=100
23 Correct 15 ms 14556 KB n=100
24 Correct 14 ms 14584 KB n=100
25 Correct 14 ms 14584 KB n=100
26 Correct 14 ms 14584 KB n=12
27 Correct 17 ms 14648 KB n=100

Subtask #2
18.0 / 18.0

# Verdict Execution time Memory Grader output
1 Correct 14 ms 14456 KB n=5
2 Correct 14 ms 14556 KB n=100
3 Correct 15 ms 14584 KB n=100
4 Correct 14 ms 14588 KB n=100
5 Correct 15 ms 14712 KB n=100
6 Correct 14 ms 14584 KB n=100
7 Correct 15 ms 14596 KB n=100
8 Correct 14 ms 14584 KB n=100
9 Correct 15 ms 14556 KB n=100
10 Correct 15 ms 14588 KB n=100
11 Correct 15 ms 14584 KB n=100
12 Correct 15 ms 14584 KB n=100
13 Correct 15 ms 14584 KB n=100
14 Correct 15 ms 14588 KB n=100
15 Correct 14 ms 14584 KB n=100
16 Correct 15 ms 14588 KB n=100
17 Correct 15 ms 14584 KB n=100
18 Correct 14 ms 14584 KB n=100
19 Correct 14 ms 14588 KB n=100
20 Correct 15 ms 14584 KB n=100
21 Correct 15 ms 14520 KB n=100
22 Correct 15 ms 14584 KB n=100
23 Correct 15 ms 14556 KB n=100
24 Correct 14 ms 14584 KB n=100
25 Correct 14 ms 14584 KB n=100
26 Correct 14 ms 14584 KB n=12
27 Correct 17 ms 14648 KB n=100
28 Correct 16 ms 14740 KB n=500
29 Correct 16 ms 14712 KB n=500
30 Correct 15 ms 14712 KB n=500
31 Correct 15 ms 14712 KB n=500
32 Correct 15 ms 14584 KB n=500
33 Correct 16 ms 14720 KB n=500
34 Correct 15 ms 14712 KB n=500
35 Correct 16 ms 14712 KB n=500
36 Correct 15 ms 14712 KB n=500
37 Correct 15 ms 14712 KB n=500
38 Correct 15 ms 14584 KB n=500
39 Correct 15 ms 14584 KB n=500
40 Correct 15 ms 14584 KB n=500
41 Correct 15 ms 14712 KB n=500
42 Correct 16 ms 14716 KB n=500
43 Correct 16 ms 14584 KB n=500
44 Correct 16 ms 14712 KB n=500
45 Correct 16 ms 14584 KB n=500
46 Correct 16 ms 14712 KB n=500
47 Correct 15 ms 14712 KB n=500
48 Correct 16 ms 14712 KB n=500
49 Correct 15 ms 14712 KB n=500
50 Correct 16 ms 14712 KB n=500
51 Correct 16 ms 14712 KB n=500
52 Correct 15 ms 14712 KB n=500
53 Correct 16 ms 14584 KB n=500
54 Correct 15 ms 14712 KB n=500
55 Correct 15 ms 14584 KB n=278
56 Correct 15 ms 14712 KB n=500
57 Correct 15 ms 14712 KB n=500
58 Correct 15 ms 14588 KB n=500

Subtask #3
26.0 / 26.0

# Verdict Execution time Memory Grader output
1 Correct 14 ms 14456 KB n=5
2 Correct 14 ms 14556 KB n=100
3 Correct 15 ms 14584 KB n=100
4 Correct 14 ms 14588 KB n=100
5 Correct 15 ms 14712 KB n=100
6 Correct 14 ms 14584 KB n=100
7 Correct 15 ms 14596 KB n=100
8 Correct 14 ms 14584 KB n=100
9 Correct 15 ms 14556 KB n=100
10 Correct 15 ms 14588 KB n=100
11 Correct 15 ms 14584 KB n=100
12 Correct 15 ms 14584 KB n=100
13 Correct 15 ms 14584 KB n=100
14 Correct 15 ms 14588 KB n=100
15 Correct 14 ms 14584 KB n=100
16 Correct 15 ms 14588 KB n=100
17 Correct 15 ms 14584 KB n=100
18 Correct 14 ms 14584 KB n=100
19 Correct 14 ms 14588 KB n=100
20 Correct 15 ms 14584 KB n=100
21 Correct 15 ms 14520 KB n=100
22 Correct 15 ms 14584 KB n=100
23 Correct 15 ms 14556 KB n=100
24 Correct 14 ms 14584 KB n=100
25 Correct 14 ms 14584 KB n=100
26 Correct 14 ms 14584 KB n=12
27 Correct 17 ms 14648 KB n=100
28 Correct 16 ms 14740 KB n=500
29 Correct 16 ms 14712 KB n=500
30 Correct 15 ms 14712 KB n=500
31 Correct 15 ms 14712 KB n=500
32 Correct 15 ms 14584 KB n=500
33 Correct 16 ms 14720 KB n=500
34 Correct 15 ms 14712 KB n=500
35 Correct 16 ms 14712 KB n=500
36 Correct 15 ms 14712 KB n=500
37 Correct 15 ms 14712 KB n=500
38 Correct 15 ms 14584 KB n=500
39 Correct 15 ms 14584 KB n=500
40 Correct 15 ms 14584 KB n=500
41 Correct 15 ms 14712 KB n=500
42 Correct 16 ms 14716 KB n=500
43 Correct 16 ms 14584 KB n=500
44 Correct 16 ms 14712 KB n=500
45 Correct 16 ms 14584 KB n=500
46 Correct 16 ms 14712 KB n=500
47 Correct 15 ms 14712 KB n=500
48 Correct 16 ms 14712 KB n=500
49 Correct 15 ms 14712 KB n=500
50 Correct 16 ms 14712 KB n=500
51 Correct 16 ms 14712 KB n=500
52 Correct 15 ms 14712 KB n=500
53 Correct 16 ms 14584 KB n=500
54 Correct 15 ms 14712 KB n=500
55 Correct 15 ms 14584 KB n=278
56 Correct 15 ms 14712 KB n=500
57 Correct 15 ms 14712 KB n=500
58 Correct 15 ms 14588 KB n=500
59 Correct 19 ms 15096 KB n=2000
60 Correct 19 ms 15096 KB n=2000
61 Correct 19 ms 15096 KB n=2000
62 Correct 19 ms 15096 KB n=2000
63 Correct 19 ms 15000 KB n=2000
64 Correct 19 ms 15224 KB n=2000
65 Correct 19 ms 14968 KB n=2000
66 Correct 19 ms 15096 KB n=2000
67 Correct 20 ms 15096 KB n=2000
68 Correct 19 ms 15096 KB n=2000
69 Correct 18 ms 15096 KB n=2000
70 Correct 18 ms 14968 KB n=2000
71 Correct 18 ms 14968 KB n=2000
72 Correct 17 ms 14996 KB n=2000
73 Correct 17 ms 14968 KB n=2000
74 Correct 18 ms 14972 KB n=1844
75 Correct 17 ms 14968 KB n=2000
76 Correct 19 ms 14968 KB n=2000
77 Correct 19 ms 15096 KB n=2000
78 Correct 19 ms 15068 KB n=2000
79 Correct 19 ms 14968 KB n=2000
80 Correct 18 ms 15096 KB n=2000
81 Correct 19 ms 15072 KB n=2000
82 Correct 19 ms 15096 KB n=2000
83 Correct 19 ms 15096 KB n=2000
84 Correct 19 ms 15096 KB n=2000
85 Correct 19 ms 15096 KB n=2000
86 Correct 19 ms 14968 KB n=2000
87 Correct 19 ms 15096 KB n=2000
88 Correct 18 ms 15096 KB n=2000
89 Correct 19 ms 15096 KB n=2000
90 Correct 19 ms 15096 KB n=2000
91 Correct 18 ms 15096 KB n=2000

Subtask #4
44.0 / 44.0

# Verdict Execution time Memory Grader output
1 Correct 14 ms 14456 KB n=5
2 Correct 14 ms 14556 KB n=100
3 Correct 15 ms 14584 KB n=100
4 Correct 14 ms 14588 KB n=100
5 Correct 15 ms 14712 KB n=100
6 Correct 14 ms 14584 KB n=100
7 Correct 15 ms 14596 KB n=100
8 Correct 14 ms 14584 KB n=100
9 Correct 15 ms 14556 KB n=100
10 Correct 15 ms 14588 KB n=100
11 Correct 15 ms 14584 KB n=100
12 Correct 15 ms 14584 KB n=100
13 Correct 15 ms 14584 KB n=100
14 Correct 15 ms 14588 KB n=100
15 Correct 14 ms 14584 KB n=100
16 Correct 15 ms 14588 KB n=100
17 Correct 15 ms 14584 KB n=100
18 Correct 14 ms 14584 KB n=100
19 Correct 14 ms 14588 KB n=100
20 Correct 15 ms 14584 KB n=100
21 Correct 15 ms 14520 KB n=100
22 Correct 15 ms 14584 KB n=100
23 Correct 15 ms 14556 KB n=100
24 Correct 14 ms 14584 KB n=100
25 Correct 14 ms 14584 KB n=100
26 Correct 14 ms 14584 KB n=12
27 Correct 17 ms 14648 KB n=100
28 Correct 16 ms 14740 KB n=500
29 Correct 16 ms 14712 KB n=500
30 Correct 15 ms 14712 KB n=500
31 Correct 15 ms 14712 KB n=500
32 Correct 15 ms 14584 KB n=500
33 Correct 16 ms 14720 KB n=500
34 Correct 15 ms 14712 KB n=500
35 Correct 16 ms 14712 KB n=500
36 Correct 15 ms 14712 KB n=500
37 Correct 15 ms 14712 KB n=500
38 Correct 15 ms 14584 KB n=500
39 Correct 15 ms 14584 KB n=500
40 Correct 15 ms 14584 KB n=500
41 Correct 15 ms 14712 KB n=500
42 Correct 16 ms 14716 KB n=500
43 Correct 16 ms 14584 KB n=500
44 Correct 16 ms 14712 KB n=500
45 Correct 16 ms 14584 KB n=500
46 Correct 16 ms 14712 KB n=500
47 Correct 15 ms 14712 KB n=500
48 Correct 16 ms 14712 KB n=500
49 Correct 15 ms 14712 KB n=500
50 Correct 16 ms 14712 KB n=500
51 Correct 16 ms 14712 KB n=500
52 Correct 15 ms 14712 KB n=500
53 Correct 16 ms 14584 KB n=500
54 Correct 15 ms 14712 KB n=500
55 Correct 15 ms 14584 KB n=278
56 Correct 15 ms 14712 KB n=500
57 Correct 15 ms 14712 KB n=500
58 Correct 15 ms 14588 KB n=500
59 Correct 19 ms 15096 KB n=2000
60 Correct 19 ms 15096 KB n=2000
61 Correct 19 ms 15096 KB n=2000
62 Correct 19 ms 15096 KB n=2000
63 Correct 19 ms 15000 KB n=2000
64 Correct 19 ms 15224 KB n=2000
65 Correct 19 ms 14968 KB n=2000
66 Correct 19 ms 15096 KB n=2000
67 Correct 20 ms 15096 KB n=2000
68 Correct 19 ms 15096 KB n=2000
69 Correct 18 ms 15096 KB n=2000
70 Correct 18 ms 14968 KB n=2000
71 Correct 18 ms 14968 KB n=2000
72 Correct 17 ms 14996 KB n=2000
73 Correct 17 ms 14968 KB n=2000
74 Correct 18 ms 14972 KB n=1844
75 Correct 17 ms 14968 KB n=2000
76 Correct 19 ms 14968 KB n=2000
77 Correct 19 ms 15096 KB n=2000
78 Correct 19 ms 15068 KB n=2000
79 Correct 19 ms 14968 KB n=2000
80 Correct 18 ms 15096 KB n=2000
81 Correct 19 ms 15072 KB n=2000
82 Correct 19 ms 15096 KB n=2000
83 Correct 19 ms 15096 KB n=2000
84 Correct 19 ms 15096 KB n=2000
85 Correct 19 ms 15096 KB n=2000
86 Correct 19 ms 14968 KB n=2000
87 Correct 19 ms 15096 KB n=2000
88 Correct 18 ms 15096 KB n=2000
89 Correct 19 ms 15096 KB n=2000
90 Correct 19 ms 15096 KB n=2000
91 Correct 18 ms 15096 KB n=2000
92 Correct 1033 ms 61008 KB n=200000
93 Correct 1274 ms 63928 KB n=200000
94 Correct 1232 ms 67340 KB n=200000
95 Correct 999 ms 61804 KB n=200000
96 Correct 937 ms 61960 KB n=200000
97 Correct 1255 ms 63100 KB n=200000
98 Correct 1133 ms 62400 KB n=200000
99 Correct 1191 ms 59560 KB n=200000
100 Correct 995 ms 63540 KB n=200000
101 Correct 1242 ms 68600 KB n=200000
102 Correct 582 ms 61148 KB n=200000
103 Correct 562 ms 61168 KB n=200000
104 Correct 557 ms 61096 KB n=200000
105 Correct 582 ms 60792 KB n=200000
106 Correct 607 ms 61100 KB n=200000
107 Correct 696 ms 60948 KB n=200000
108 Correct 1133 ms 59768 KB n=200000
109 Correct 1075 ms 60012 KB n=200000
110 Correct 1044 ms 59896 KB n=200000
111 Correct 949 ms 63192 KB n=200000
112 Correct 1195 ms 67584 KB n=200000
113 Correct 1439 ms 62984 KB n=200000
114 Correct 1018 ms 63048 KB n=200000
115 Correct 1366 ms 60936 KB n=200000
116 Correct 923 ms 62268 KB n=200000
117 Correct 1146 ms 67844 KB n=200000
118 Correct 1306 ms 61952 KB n=200000
119 Correct 872 ms 60000 KB n=200000
120 Correct 1092 ms 68216 KB n=200000
121 Correct 1123 ms 68188 KB n=200000
122 Correct 1102 ms 68444 KB n=200000
123 Correct 575 ms 60152 KB n=200000
124 Correct 258 ms 29344 KB n=25264